/* ==========================================================================
   GRANITUM — Архитектурный магазин керамогранита (Стили)
   ========================================================================== */
:root {
    --bg-main: #f6f5f2;
    --bg-card: #ffffff;
    --bg-dark: #141517;
    --bg-dark-card: #1f2125;
    --text-main: #18181b;
    --text-muted: #6b7280;
    --accent: #b48a4e;
    --accent-hover: #967039;
    --border: #e4e2dd;
    --radius: 8px;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
    --transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, Helvetica, Arial, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.5;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Верхняя панель */
.topbar {
    background: var(--bg-dark);
    color: #a1a1aa;
    font-size: 13px;
    padding: 8px 0;
    border-bottom: 1px solid #27272a;
}

.topbar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.topbar-left, .topbar-right {
    display: flex;
    gap: 20px;
    align-items: center;
}

.topbar-phone {
    color: #fff;
    text-decoration: none;
    font-weight: 600;
}

/* Шапка */
.header {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
    gap: 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-main);
}

.logo-mark {
    width: 38px;
    height: 38px;
    background: var(--bg-dark);
    color: var(--accent);
    display: grid;
    place-items: center;
    font-size: 20px;
    border-radius: 6px;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-text strong {
    font-size: 19px;
    letter-spacing: 2px;
}

.logo-text small {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.6px;
}

.nav {
    display: flex;
    gap: 28px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 500;
    font-size: 14px;
    transition: color var(--transition);
}

.nav-link:hover {
    color: var(--accent);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 14px;
}

.search-box input {
    padding: 9px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-main);
    width: 240px;
    font-size: 13px;
    outline: none;
    transition: border-color var(--transition);
}

.search-box input:focus {
    border-color: var(--accent);
    background: #fff;
}

.cart-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--bg-dark);
    color: #fff;
    border: none;
    padding: 10px 18px;
    border-radius: var(--radius);
    cursor: pointer;
    font-weight: 600;
    font-size: 14px;
    transition: background var(--transition);
}

.cart-btn:hover {
    background: #27272a;
}

.cart-badge {
    background: var(--accent);
    color: #fff;
    padding: 2px 8px;
    border-radius: 99px;
    font-size: 12px;
}

/* Кнопки */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 24px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all var(--transition);
}

.btn-primary {
    background: var(--accent);
    color: #fff;
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-outline {
    background: transparent;
    border-color: var(--text-main);
    color: var(--text-main);
}

.btn-outline:hover {
    background: var(--text-main);
    color: #fff;
}

.btn-sm {
    padding: 8px 14px;
    font-size: 13px;
}

.btn-reset {
    background: #eceae4;
    color: var(--text-main);
}

.btn-reset:hover {
    background: #dcd9d0;
}

.full-width {
    width: 100%;
}

/* Hero секция */
.hero {
    padding: 56px 0 64px;
    border-bottom: 1px solid var(--border);
    background: radial-gradient(circle at 80% 20%, #ece7df 0%, var(--bg-main) 60%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 48px;
    align-items: center;
}

.hero-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1.4px;
    color: var(--accent);
    margin-bottom: 14px;
}

.hero-content h1 {
    font-size: 44px;
    line-height: 1.12;
    margin-bottom: 18px;
    letter-spacing: -0.8px;
}

.hero-content p {
    font-size: 16px;
    color: var(--text-muted);
    margin-bottom: 28px;
    max-width: 580px;
}

.hero-buttons {
    display: flex;
    gap: 14px;
    margin-bottom: 36px;
    flex-wrap: wrap;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.stat-item strong {
    display: block;
    font-size: 22px;
}

.stat-item span {
    font-size: 13px;
    color: var(--text-muted);
}

.slab-card {
    background: #fff;
    padding: 18px;
    border-radius: 12px;
    box-shadow: 0 24px 48px rgba(0,0,0,0.12);
    border: 1px solid var(--border);
}

.slab-badge {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.slab-surface {
    height: 340px;
    border-radius: 8px;
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
    box-shadow: inset 0 0 0 1px rgba(0,0,0,0.08);
}

.slab-surface::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(125deg, rgba(255,255,255,0.28) 0%, rgba(255,255,255,0) 45%);
    pointer-events: none;
}

.slab-Specs {
    display: flex;
    justify-content: space-between;
    margin-top: 12px;
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
}

/* Секции */
.section {
    padding: 64px 0;
}

.section-dark {
    background: var(--bg-dark);
    color: #fff;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 28px;
    flex-wrap: wrap;
    gap: 16px;
}

.section-subtitle {
    display: block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: var(--accent);
    margin-bottom: 6px;
}

.section-header h2 {
    font-size: 32px;
    letter-spacing: -0.5px;
}

/* Фильтры */
.filters-bar {
    background: var(--bg-card);
    padding: 20px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    align-items: flex-end;
    margin-bottom: 32px;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.filter-group label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
}

.filter-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.pill {
    padding: 8px 14px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--bg-main);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
}

.pill.active, .pill:hover {
    background: var(--bg-dark);
    color: #fff;
    border-color: var(--bg-dark);
}

.control-select, .control-input {
    padding: 9px 14px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: #fff;
    font-size: 14px;
    color: var(--text-main);
    outline: none;
}

/* Сетка каталога */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
    gap: 24px;
}

.product-card {
    background: var(--bg-card);
    border-radius: 10px;
    border: 1px solid var(--border);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition), box-shadow var(--transition);
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.product-thumb-wrap {
    position: relative;
    height: 220px;
    overflow: hidden;
    cursor: pointer;
    background: #e5e5e5;
}

.product-thumb {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: transform 0.4s ease;
}

.product-card:hover .product-thumb {
    transform: scale(1.05);
}

.product-badges {
    position: absolute;
    top: 12px;
    left: 12px;
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.badge {
    padding: 4px 9px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 700;
    background: rgba(20, 21, 23, 0.82);
    color: #fff;
    backdrop-filter: blur(4px);
}

.badge-accent {
    background: var(--accent);
}

.product-body {
    padding: 18px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.product-meta {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 4px;
    display: flex;
    justify-content: space-between;
}

.product-title {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 10px;
    cursor: pointer;
}

.product-title:hover {
    color: var(--accent);
}

.product-specs-mini {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
    font-size: 12px;
    color: var(--text-muted);
    background: var(--bg-main);
    padding: 10px;
    border-radius: 6px;
    margin-bottom: 14px;
}

.product-footer {
    margin-top: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

.price-block strong {
    display: block;
    font-size: 20px;
}

.price-block small {
    font-size: 11px;
    color: var(--text-muted);
}

/* Визуализатор раскладки */
.visualizer-layout {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 32px;
    align-items: stretch;
}

.visualizer-controls {
    background: var(--bg-dark-card);
    padding: 24px;
    border-radius: 10px;
    border: 1px solid #2e3239;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.control-block label {
    display: block;
    font-size: 13px;
    color: #d4d4d8;
    margin-bottom: 8px;
}

.grout-swatches {
    display: flex;
    gap: 10px;
}

.swatch {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: transform 0.15s ease;
}

.swatch.active {
    border-color: var(--accent);
    transform: scale(1.14);
}

.range-slider {
    width: 100%;
    accent-color: var(--accent);
}

.vis-summary {
    margin-top: auto;
    background: rgba(255,255,255,0.04);
    padding: 14px;
    border-radius: 8px;
    font-size: 13px;
    color: #a1a1aa;
}

.visualizer-canvas-wrap {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.room-preview {
    flex: 1;
    min-height: 420px;
    border-radius: 10px;
    padding: 16px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 125px;
    gap: 2px;
    background-color: #e5e5e5;
    overflow: hidden;
    box-shadow: inset 0 0 40px rgba(0,0,0,0.35);
    border: 1px solid #2e3239;
}

.preview-tile {
    background-size: cover;
    background-position: center;
    position: relative;
    transition: all 0.2s ease;
}

.room-caption {
    font-size: 12px;
    color: #9ca3af;
    text-align: right;
}

/* Калькулятор */
.calc-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 32px;
}

.card-panel {
    background: var(--bg-card);
    padding: 28px;
    border-radius: 10px;
    border: 1px solid var(--border);
}

.form-row {
    margin-bottom: 20px;
}

.form-row.two-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 8px;
}

.radio-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-top: 8px;
}

.radio-card {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: var(--bg-main);
}

.radio-card input {
    display: none;
}

.radio-card.active {
    border-color: var(--accent);
    background: #fbf8f3;
}

.radio-card strong {
    font-size: 16px;
    color: var(--accent);
}

.radio-card span {
    font-size: 12px;
    color: var(--text-muted);
}

.spec-list {
    margin: 20px 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.spec-row {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
}

.spec-row.highlight {
    background: #fbf8f3;
    padding: 10px 12px;
    border-radius: 6px;
    border-left: 3px solid var(--accent);
}

.divider {
    border: none;
    border-top: 1px dashed var(--border);
    margin: 4px 0;
}

.calc-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 18px;
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
    gap: 16px;
}

.calc-total strong {
    display: block;
    font-size: 24px;
}

/* Преимущества */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.adv-card {
    background: var(--bg-card);
    padding: 28px;
    border-radius: 10px;
    border: 1px solid var(--border);
}

.adv-icon {
    font-size: 13px;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.adv-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.adv-card p {
    font-size: 14px;
    color: var(--text-muted);
}

/* Корзина Drawer */
.drawer-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 200;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
}

.drawer-backdrop.open {
    opacity: 1;
    pointer-events: auto;
}

.cart-drawer {
    position: fixed;
    top: 0;
    right: 0;
    width: 420px;
    max-width: 100%;
    height: 100vh;
    background: #fff;
    z-index: 201;
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform var(--transition);
}

.cart-drawer.open {
    transform: translateX(0);
}

.drawer-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.close-btn {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--text-muted);
}

.drawer-body {
    flex: 1;
    overflow-y: auto;
    padding: 20px 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.cart-item {
    display: grid;
    grid-template-columns: 64px 1fr auto;
    gap: 12px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border);
    align-items: center;
}

.cart-item-thumb {
    width: 64px;
    height: 64px;
    border-radius: 6px;
    background-size: cover;
}

.cart-item-info h4 {
    font-size: 14px;
    margin-bottom: 2px;
}

.cart-item-info small {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
}

.qty-controls {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 6px;
    background: var(--bg-main);
    padding: 3px 8px;
    border-radius: 4px;
}

.qty-btn {
    border: none;
    background: none;
    font-weight: 700;
    cursor: pointer;
    padding: 2px 6px;
}

.drawer-footer {
    padding: 20px 24px;
    border-top: 1px solid var(--border);
    background: var(--bg-main);
}

.cart-summary-line {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 14px;
}

.cart-summary-line.total {
    font-size: 18px;
    margin-bottom: 16px;
}

/* Модальные окна */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    z-index: 300;
    display: none;
    place-items: center;
    padding: 20px;
}

.modal-backdrop.open {
    display: grid;
}

.modal {
    background: #fff;
    border-radius: 12px;
    max-width: 780px;
    width: 100%;
    padding: 32px;
    position: relative;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-small {
    max-width: 460px;
}

.modal-close {
    position: absolute;
    top: 18px;
    right: 20px;
}

.modal-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
}

.modal-slab-preview {
    height: 300px;
    border-radius: 8px;
    background-size: cover;
}

.checkout-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 18px;
}

/* Подвал */
.footer {
    background: #0f1012;
    color: #9ca3af;
    padding: 36px 0;
    font-size: 13px;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer strong {
    color: #fff;
    display: block;
    margin-bottom: 4px;
}

/* Toast уведомление */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--bg-dark);
    color: #fff;
    padding: 12px 20px;
    border-radius: 8px;
    border-left: 4px solid var(--accent);
    box-shadow: 0 12px 24px rgba(0,0,0,0.2);
    transform: translateY(120%);
    opacity: 0;
    transition: all var(--transition);
    z-index: 400;
    font-size: 14px;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

@media (max-width: 960px) {
    .hero-grid, .visualizer-layout, .calc-grid, .advantages-grid, .modal-grid {
        grid-template-columns: 1fr;
    }
    .nav {
        display: none;
    }
}